Amanda wants to make mashed potatoes for six people. she found a recipe which feeds three people and requires six ounces of potatoes. how many potatoes does she need?

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220